Roller for endless aprons for carding-machines



Patented Oct. 26, 1.886.'.

(No Model.)

ROLLER POR ENDLESS APRONS FOR GAR'DING MACHINES, 6m. N0. 351,531.

UNITED STATES PATENT OFFICE.

WILLIAM scPIoEIELD, or PHILADELPHIA, PENNSYLVANIA.

ROLLER FOR ENDLESS PRONS FOR GARDENS-MACHINES, 80C.

SPECIFICATION forming part of Letters Patent No. 351,531, dated October 26. 1835- Application led May 29, 1886. Serial No. 203,656. (N o model.)

ers for endless aprons, but more particularlyto the rollers for endless aprons used in carding orA other like machines for transferring the stoclgweb, orl ber from one part of the machine to another; and it has for its object to prevent stray stock or ber gaining access to and accumulating on, within, or about the gudgeons or journal-bearings of the rollers. Heretofore these journals and their bearings have mainly been soconstructed that the loose bers or stray stock has easy access to the journalbearings,and winds about the journals or accumulates thereon within the journalbearings to such extent as to materially interfere with the freedom of rotation of the roller, and oftentimes ultimately stops its rotation. In many cases, however, before the accumulation of stock or ber on the journal stops the rotation of the roller, the undue friction induced by such stock generates `heat sufcient to ignite the same, and thereby endangers the safety of the buildingin which. the devices are located. My improvements, .in preventing the accumulation of stray bers about the rollerjournals and their bearings, secure, therefore, freedom of rotation of the rollers at all times, and avoid allliability of re or like accidents.

My invention accordingly consists of a roller having at its ends, or between its gudgeons or journals and its periphery, cups or guard-ri ugs, which provide a tortuous path for the passage of stray stock to the roller-journal bearings,I

and which keep such stock near to the roller periphery, so that the same may from time to time be easily removed to avoid undue accumulation about said rings. Ihese rings or guards are preferably formed on or secured to the inner-sides of the parts of the roller-frame adjacent to the ends of the roller, and they enter annular recesses bored or made in the roller-ends. To compensate for the loss of strength at the ends of the rollers due to boring the annular recesses therein', the latter are sunk into the roller-ends for a considerable depth, and are preferably of a less width in cross-section at their inner ends than at their outer ends, and annular metal bands are tightly inserted or driven into the recesses in advanceoftheguard-rings to forminterior clamping-bands to strengthen the roller'ends.

Referring to the accompanying drawings,'in which Figure l is a section showing one end of a roller, its gudgeon or journal, part of endless apron, part of the roller-frame, and my improvements. Fig. 2 is a like view showing my improvements applied to a-modied forni of roller-frame side-bar. Fig. 3 is a side elevation of frame side-bar shown in Fig. l, and Fig. 4 is a perspective of part of apron, rollers, and rollenframe.

A represents one end of a Wooden or other roller; B, its gudgeon or journal, inserted in the roller in the well-known manner; C, part of the endless apron, and B part of a side-bar of the roller-frame.

In each end of the roller A, and surrounding the journal B, is bored or formed an annular recess, a, which is sunk into the roller for a considerable depth, and decreases in width or in crosssection as it is bored, so that it has an inner part, a', of less width in cross-section than that of its outer part, c2. This difference in width or cross-section of the recesses is provided for at the time of boring by a suitably-shaped chisel or boring-tool.

In the inner or smaller part, a', of the recess c is inserted, preferably, a metal band or ring,

E, which is of such diameter that it tightly ts the inner end of the recess, and forms an interior clamping-band for strengthening the end of the roller, or it compensates for any Weakness produced by boring the recess a, and also prevents the roller-end splitting or otherwise deteriorating.

When the roller A is in position upon its frame or bearings B', the outer ends, a2, of the recesses a receive the annular cups, sleeves, or rings F, formed on or secured to the adjacent inner sides of the frame B', and as these IOO recesses a at their outer ends are of a slightly larger width in cross-section than that of the cups F, and as the roller is supported upon its `journals, the roller-ends rotate about the cups or sleeves F Without friction.

In Fig. 2 the cups or sleeves F are shown cast on or secured to the side-hars b of rollerframe B. In Figs. l and 4, however, the sleeves r cups F are shown cast on or secured to bars I, which project forwardly from the front ends of the roller-fran1e, which bars I may be used for the reception of a swinging frame, as shown in a pending application, tiled by me the th day of March, 1886, and serial numbered 197,171. The bars I are connected to the forward ends of frame B by means of registeringslots z' in said hars b and I, which slots are concentric with the roller-jonrnal B, and in said slots are bolts or screws i with nuts, to admit of adjusting said bars I and retaining them in position. In this case the side-bars b of frame B' have bearings for the journals ofthe rollers in a shoulder, 112, which also serves as a joint or swivel connection for the bars I. to which is secured the cup or guard-ring F. By adjusting the bolts or screws i the inclination of the bars I may be varied as desired.

The employment of the cups or lguard-rings F, entering recesses a in the ends of the roller, provide a tortuous path for the passage of the stray stock or fibers to the journal beari n gs, as such stock must pass into recess a, and thence around the edge of cup or guard-ring F, and out of the recess before it gains access to the roller-journal bearings. Before doing this, however, it accumulates upon the periphery ofthe cup or guard-ring F, and as its periphery is near to that of the roller the accumulation of stray stock may from time to time be easily removed by hand or any suitable tool. The stray stock not being able to find its Way into the rollerjournal bearings, the rollers are free at all times to normally revolve, and all danger from fire or other like accidents is avoided by the use of my improvements.

l. A rollerhaving annular recesses in its ends and interior clamping orstrengthening bands, in combination with a frame or support having cups or guard-rings F entering said recesses, substantially as set forth.

2. A roller having end recesses, interior clampingbands, and guard-rings adapted to said recesses, substantially as and. for the purpose set forth.

3. The combination of rollers A, having gudgeons or `jou rnals B and end recesses, a, the roller-frame B', having bearings for said gudgeons. and adj ustahle bars I, having sleeves or guard-rings F, adapted to recesses a, substantially as set forth.

4. In combination with a roller having end jonrualsmand recesses, clamping-bands in said recesses, and a frame or support having cups or rings projecting into said recesses, substantially as set forth.

5. In combinationwith a roller having end recesses of different Width in crosssection, clamping-bands in said recesses, and a frame or support having guard-rings for the ends of said rollers, substantially as set forth.

[n testimony whereof I affix my signature in presence oftwo Witnesses.

WILLIAM SHOFIELD.

7Witnesses:

JOHN RoDenRs, S. J. VAN STAvoRnN. 

